Sock



FIG. 1 is a right side elevational view of a sock showing our new design, the opposite side being a mirror image thereof;

FIG. 2 is a right side elevational view in extended condition;

FIG. 3 is a front elevational view of FIG. 1; and,

FIG. 4 is a front elevational view of FIG. 2. 

The ornamental design for a sock, as shown and described. 